def normalize(name):
    bad_letters_skip = """'"/\\,<>?[]{}+=()*&^%$#@!~`"""
    bad_letters_replace = """ :;"""

    for b in bad_letters_skip:
        name = name.replace(b, '')
        
    for b in bad_letters_replace:
        name = name.replace(b, '-')
        
    return name.strip().replace('--', '-')